Comparison of dynamic visual acuity after implantation of toric bifocal or trifocal intraocular lens in age-related cataract patients: a randomized controlled trial

Yuanting Li; Xiaodan Li; Xiaodan Jiang; Yuexin Wang; Tingyi Wu; Huaqin Xia; Xuemin Li

doi:10.3389/fnins.2023.1287626

Comparison of dynamic visual acuity after implantation of toric bifocal or trifocal intraocular lens in age-related cataract patients: a randomized controlled trial

Front Neurosci. 2023 Dec 21:17:1287626. doi: 10.3389/fnins.2023.1287626. eCollection 2023.

Authors

Yuanting Li^#^{1

2}, Xiaodan Li^#^{3

4

5}, Xiaodan Jiang^#^{1

2}, Yuexin Wang^{1

2}, Tingyi Wu^{1

2}, Huaqin Xia^{1

2}, Xuemin Li^{1

2}

Affiliations

¹ Department of Ophthalmology, Peking University Third Hospital, Beijing, China.
² Beijing Key Laboratory of Restoration of Damaged Ocular Nerves, Beijing, China.
³ Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing, China.
⁴ Beijing Key Laboratory of Sports Injuries, Beijing, China.
⁵ Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China.

^# Contributed equally.

Abstract

Purpose: To investigate the dynamic visual acuity (DVA) after implantation of toric bifocal or trifocal intraocular lens in age-related cataract patients.

Methods: This was a prospective randomized controlled trial. Of one hundred and twenty-four patients enrolled and randomized to receive unilateral phacoemulsification and toric trifocal (939 M/MP, Carl Zeiss Meditec AG, Jena, Germany) or toric bifocal (909 M, Carl Zeiss Meditec AG, Jena, Germany) intraocular lenses (IOL) implantation, ninety-nine patients completed the follow-up and were included in final analysis. Postoperatively, uncorrected and corrected distance (UDVA and CDVA), intermediate (UIVA and DCIVA) and near (UNVA and DCNVA) static visual acuity, manifest refraction and uncorrected and corrected distance DVA (UDDVA and CDDVA) at 20, 40 and 80 degrees per second (dps) were evaluated at one week, one month and three months.

Results: Three months postoperatively, the UDVA were 0.13 ± 0.11 and 0.14 ± 0.13 in the toric trifocal and bifocal IOL group, respectively. Significant better UIVA (trifocal, 0.17 ± 0.13 vs. bifocal, 0.23 ± 0.13, p = 0.037) and DCIVA (trifocal, 0.16 ± 0.11 vs. bifocal, 0.20 ± 0.12, p = 0.048) were observed in patients implanting toric trifocal than bifocal IOL at three months postoperatively. Patients implanted with toric bifocal IOL obtained better CDDVA at 80 dps (0.5607 ± 0.2032) than the trifocal group (0.6573 ± 0.2450, p = 0.039) at three months. Postoperative UDDVA and CDDVA at 20, 40 and 80 dps were significantly associated with age (p < 0.05, respectively) and postoperative static visual acuity (p < 0.05, respectively).

Conclusion: Toric trifocal IOL provides better static intermediate visual acuity, and toric bifocal IOL implantation provides better distance dynamic visual acuity at high speed.

Keywords: age-related cataract; dynamic visual acuity; static visual acuity; toric bifocal IOL; toric trifocal IOL.

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This research was funded by Carl Zeiss Meditec AG.